The MaxRevo is 1350 Watt .. with peak power available up-to 1620 Watt, yummie. Interestingly enough this is a nice small sized power supply, you'll hardly hear it, has plenty of modular options, well read is all modular and is 80 PLUS Gold certified. That makes the modular cables based MaxRevo PSU series 88-94% efficient @ 20-100% load.